Effect of LED lighting on productivity and cut flower quality of sweet pea
2019
Yagishita, Y.
For stability and continuous production of sweet pea (Lathyrus odoratus L.), we examined the effect of LED lighting on productivity and flower quality for the major sweet pea cultivars in Kanagawa Prefecture. Under low sunlight conditions, LED lighting suppressed a decrease in floret number, and this effect was more pronounced in the early stage of harvesting, especially when plant vigor was variable. By using LED lighting during cultivation, floret number was stable and floret production exceeded four florets, which is the appropriate number required for commercial sales. On the other hand, the quality of cut flowers was decreased under LED illumination because of shorter peduncle length. To ensure stable and continuous production of sweet peas, methods for optimizing irrigation, fertilization, plant vigor and supplemental lighting need to be investigated in order to produce cultivars with favorable characteristics.
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